001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.oozie.command.wf; 019 020 import org.apache.oozie.ErrorCode; 021 import org.apache.oozie.WorkflowJobBean; 022 import org.apache.oozie.XException; 023 import org.apache.oozie.command.CommandException; 024 import org.apache.oozie.command.PreconditionException; 025 import org.apache.oozie.executor.jpa.WorkflowJobGetJPAExecutor; 026 import org.apache.oozie.service.JPAService; 027 import org.apache.oozie.service.Services; 028 import org.apache.oozie.util.LogUtils; 029 import org.apache.oozie.util.ParamChecker; 030 031 public class DefinitionXCommand extends WorkflowXCommand<String> { 032 private String jobId; 033 private WorkflowJobBean wfJob; 034 035 public DefinitionXCommand(String jobId) { 036 super("definition", "definition", 1); 037 this.jobId = ParamChecker.notEmpty(jobId, "jobId"); 038 } 039 040 @Override 041 protected boolean isLockRequired() { 042 return false; 043 } 044 045 @Override 046 public String getEntityKey() { 047 return this.jobId; 048 } 049 050 @Override 051 protected void loadState() throws CommandException { 052 try { 053 JPAService jpaService = Services.get().get(JPAService.class); 054 055 if (jpaService != null) { 056 this.wfJob = jpaService.execute(new WorkflowJobGetJPAExecutor(jobId)); 057 LogUtils.setLogInfo(wfJob, logInfo); 058 } 059 else { 060 LOG.error(ErrorCode.E0610); 061 } 062 } 063 catch (XException ex) { 064 throw new CommandException(ex); 065 } 066 } 067 068 @Override 069 protected void verifyPrecondition() throws CommandException, PreconditionException { 070 } 071 072 @Override 073 protected String execute() throws CommandException { 074 if (wfJob != null) { 075 return wfJob.getWorkflowInstance().getApp().getDefinition(); 076 } 077 else { 078 throw new CommandException(ErrorCode.E0604); 079 } 080 } 081 082 }